Estimation of residual stresses in laminated composites using field measurements on a cracked sample

Gilles Lubineau*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

Today, advanced damage models taking into account residual stresses are available. In particular, microcracking as a degradation mechanism in laminates is very sensitive to manufacturing-induced stresses. However, these stresses are often introduced through a model parameter whose identification remains difficult or requires time-consuming and costly additional tests. Here, we propose a relatively simple method based on the observation of the displacement field associated with the creation of a transverse crack in a crosswise laminate. Subsequently, this displacement field can be reinterpreted according to the model being used in order to build the quantity required by the model.

Original languageEnglish (US)
Pages (from-to)2761-2769
Number of pages9
JournalComposites Science and Technology
Volume68
Issue number13
DOIs
StatePublished - Oct 1 2008

Keywords

  • A. Laminate
  • C. Residual stress
  • C. Transverse cracking
  • D. Optical microscopy

ASJC Scopus subject areas

  • Ceramics and Composites
  • Engineering(all)

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